<template>

  <a-layout>

    <a-layout-content :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }">
      <p>
        <a-form
            layout="inline"
            :model="param"
        >
          <a-form-item>
            <a-input v-model:value="param.name" placeholder="一级分类名称">
            </a-input>
          </a-form-item>
          <a-form-item>
            <a-button type="primary" @click="handleQuery({})">
              查询
            </a-button>
          </a-form-item>
          <a-form-item>
            <a-button type="primary" @click="add()">
              新增
            </a-button>
          </a-form-item>
        </a-form>
      </p>

      <a-table
          :columns="columns"
          :row-key="record => record.id"
          :data-source="level1"
          :loading="loading"
          :pagination="false"
      >
        <template #cover="{text:cover}">
          <img v-if="cover" :src="cover" alt="avatar"/>
        </template>

        <template v-slot:action="{text,record}">
          <a-space size="small">
            <a-button type="primary" @click="edit(record)">
              编辑
            </a-button>

            <a-popconfirm
                title="删除后不可恢复，确认删除？"
                ok-text="是"
                cancel-text="否"
                @confirm="handleDelete(record.id)"
            >
              <a-button type="danger">
                删除
              </a-button>
            </a-popconfirm>

          </a-space>
        </template>
      </a-table>

    </a-layout-content>
  </a-layout>

  <a-modal
      title="分类表单"
      v-model:visible="modalVisible"
      :confirm-loading="modalLoading"
      @ok="handleModalOk"
  >

    <a-form :model="category" :label-col="{span: 6}">
      <a-form-item label="名称">
        <a-input v-model:value="category.name"/>
      </a-form-item>
      <a-form-item label="父分类">
        <a-select
            ref="select"
            v-model:value="category.parent"
        >
          <a-select-option value="0">无</a-select-option>
          <a-select-option v-for="c in level1" :key="c.id" :value="c.id"
                           :disabled="category.id==c.id">
            {{ c.name }}
          </a-select-option>
        </a-select>

      </a-form-item>
      <a-form-item label="顺序">
        <a-input v-model:value="category.sort"/>
      </a-form-item>
    </a-form>

  </a-modal>
</template>

<script lang="ts">
import {defineComponent, onMounted, ref} from "vue";
import axios from "axios";
import {message} from 'ant-design-vue';
import {Tool} from "@/util/tool";

export default defineComponent({
  name: 'AdminCategory',
  setup() {
    const param = ref();
    param.value = {};
    const categorys = ref();
    const loading = ref(false);

    const columns = [
      {
        title: '名称',
        dataIndex: 'name',
      },
      {
        title: '父分类',
        dataIndex: 'parent',
        slots: {customRender: 'parent'}
      },
      {
        title: '顺序',
        dataIndex: 'sort',
        slots: {customRender: 'sort'}
      },
      {
        title: 'Action',
        key: 'action',
        slots: {customRender: 'action'}
      },
    ]

    const level1 = ref();

    /**
     * 数据查询
     */
    const handleQuery = (params: any) => {
      loading.value = true;
      level1.value=[];
      axios.get("/category/all", {
        params:{
          page:params.page,
          size:params.size,
          name:param.value.name
        }
      }).then((response) => {

        loading.value = false;
        const data = response.data;
        if (data.success){
          categorys.value=data.content;
          console.log("原始数据：",categorys.value);

          level1.value = [];
          level1.value = Tool.array2Tree(categorys.value,0);

          console.log("树形结构：",level1);
        }else {
          message.error(data.message);
        }
      });
    };


    //------------------ 表单 ------------------
    const category = ref({});
    const modalVisible = ref(false);
    const modalLoading = ref(false);

    const handleModalOk = () => {
      modalLoading.value = true;

      axios.post("/category/save", category.value).then((response) => {
        //后端有返回就去掉loading效果
        modalLoading.value=false;
        const data = response.data; //data就是后端的返回值CommonResp
        if (data.success){
          modalVisible.value = false;

          //重新加载列表
          handleQuery({});
        }else {
          message.error(data.message);
        }
      });
    };

    /**
     * 编辑
     */
    const edit = (record: any)=>{
      modalVisible.value=true;
      category.value=Tool.copy(record);
    };

    /**
     * 新增
     */
    const add = ()=>{
      modalVisible.value=true;
      category.value={};
    };

    /**
     * 删除
     */
    const handleDelete = (id:number)=>{
      axios.delete("/category/delete/"+id).then((response) => {
        const data = response.data; //data就是后端的返回值CommonResp
        if (data.success){
          //重新加载列表
          handleQuery({});
        }
      });
    };

    onMounted(()=>{
      handleQuery({});
    });

    return {
      level1,
      // categorys,
      columns,
      loading,
      handleQuery,

      edit,
      add,
      handleDelete,

      modalVisible,
      modalLoading,
      handleModalOk,
      category,
      param
    }
  }
})
</script>

<style>
  img {
    width: 50px!important;
    height: 50px!important;
  }
</style>